Ernest Hemingway is known for his distinctive writing style and themes of love, war, and loss. His novels, such as The Old Man and the Sea, A Farewell to Arms, and For Whom the Bell Tolls, often feature complex characters facing moral dilemmas and existential challenges. Hemingway's works are characterized by concise prose and a focus on dialogue, reflecting his journalistic background. His experiences in World War I and World War II heavily influenced his storytelling, making his narratives both personal and universal. His contributions to literature earned him the Nobel Prize in Literature in 1954.